1 /*
2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
4  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
5  * Copyright (C) 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
6  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public License
19  * along with this library; see the file COPYING.LIB.  If not, write to
20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21  * Boston, MA 02110-1301, USA.
22  */
23 
24 #include "config.h"
25 #include "HTMLAppletElement.h"
26 
27 #include "Attribute.h"
28 #include "HTMLDocument.h"
29 #include "HTMLNames.h"
30 #include "RenderApplet.h"
31 #include "SecurityOrigin.h"
32 #include "Settings.h"
33 #include "Widget.h"
34 
35 namespace WebCore {
36 
37 using namespace HTMLNames;
38 
HTMLAppletElement(const QualifiedName & tagName,Document * document)39 inline HTMLAppletElement::HTMLAppletElement(const QualifiedName& tagName, Document* document)
40     : HTMLPlugInElement(tagName, document)
41 {
42     ASSERT(hasTagName(appletTag));
43 }
44 
create(const QualifiedName & tagName,Document * document)45 PassRefPtr<HTMLAppletElement> HTMLAppletElement::create(const QualifiedName& tagName, Document* document)
46 {
47     return adoptRef(new HTMLAppletElement(tagName, document));
48 }
49 
parseMappedAttribute(Attribute * attr)50 void HTMLAppletElement::parseMappedAttribute(Attribute* attr)
51 {
52     if (attr->name() == altAttr ||
53         attr->name() == archiveAttr ||
54         attr->name() == codeAttr ||
55         attr->name() == codebaseAttr ||
56         attr->name() == mayscriptAttr ||
57         attr->name() == objectAttr) {
58         // Do nothing.
59     } else if (attr->name() == nameAttr) {
60         const AtomicString& newName = attr->value();
61         if (inDocument() && document()->isHTMLDocument()) {
62             HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
63             document->removeNamedItem(m_name);
64             document->addNamedItem(newName);
65         }
66         m_name = newName;
67     } else if (isIdAttributeName(attr->name())) {
68         const AtomicString& newId = attr->value();
69         if (inDocument() && document()->isHTMLDocument()) {
70             HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
71             document->removeExtraNamedItem(m_id);
72             document->addExtraNamedItem(newId);
73         }
74         m_id = newId;
75         // also call superclass
76         HTMLPlugInElement::parseMappedAttribute(attr);
77     } else
78         HTMLPlugInElement::parseMappedAttribute(attr);
79 }
80 
insertedIntoDocument()81 void HTMLAppletElement::insertedIntoDocument()
82 {
83     if (document()->isHTMLDocument()) {
84         HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
85         document->addNamedItem(m_name);
86         document->addExtraNamedItem(m_id);
87     }
88 
89     HTMLPlugInElement::insertedIntoDocument();
90 }
91 
removedFromDocument()92 void HTMLAppletElement::removedFromDocument()
93 {
94     if (document()->isHTMLDocument()) {
95         HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
96         document->removeNamedItem(m_name);
97         document->removeExtraNamedItem(m_id);
98     }
99 
100     HTMLPlugInElement::removedFromDocument();
101 }
102 
rendererIsNeeded(RenderStyle * style)103 bool HTMLAppletElement::rendererIsNeeded(RenderStyle* style)
104 {
105     if (!fastHasAttribute(codeAttr))
106         return false;
107 
108     return HTMLPlugInElement::rendererIsNeeded(style);
109 }
110 
createRenderer(RenderArena *,RenderStyle * style)111 RenderObject* HTMLAppletElement::createRenderer(RenderArena*, RenderStyle* style)
112 {
113     if (canEmbedJava()) {
114         HashMap<String, String> args;
115 
116         args.set("code", getAttribute(codeAttr));
117 
118         const AtomicString& codeBase = getAttribute(codebaseAttr);
119         if (!codeBase.isNull())
120             args.set("codeBase", codeBase);
121 
122         const AtomicString& name = document()->isHTMLDocument() ? getAttribute(nameAttr) : getIdAttribute();
123         if (!name.isNull())
124             args.set("name", name);
125         const AtomicString& archive = getAttribute(archiveAttr);
126         if (!archive.isNull())
127             args.set("archive", archive);
128 
129         args.set("baseURL", document()->baseURL().string());
130 
131         const AtomicString& mayScript = getAttribute(mayscriptAttr);
132         if (!mayScript.isNull())
133             args.set("mayScript", mayScript);
134 
135         // Other arguments (from <PARAM> tags) are added later.
136 
137         return new (document()->renderArena()) RenderApplet(this, args);
138     }
139 
140     return RenderObject::createObject(this, style);
141 }
142 
defaultEventHandler(Event * event)143 void HTMLAppletElement::defaultEventHandler(Event* event)
144 {
145     RenderObject* r = renderer();
146     if (!r || !r->isWidget())
147         return;
148     Widget* widget = toRenderWidget(r)->widget();
149     if (!widget)
150         return;
151     widget->handleEvent(event);
152 }
153 
renderWidgetForJSBindings() const154 RenderWidget* HTMLAppletElement::renderWidgetForJSBindings() const
155 {
156     if (!canEmbedJava())
157         return 0;
158 
159     RenderApplet* applet = toRenderApplet(renderer());
160     if (applet)
161         applet->createWidgetIfNecessary();
162 
163     return applet;
164 }
165 
canEmbedJava() const166 bool HTMLAppletElement::canEmbedJava() const
167 {
168     if (document()->securityOrigin()->isSandboxed(SandboxPlugins))
169         return false;
170 
171     Settings* settings = document()->settings();
172     return settings && settings->isJavaEnabled();
173 }
174 
finishParsingChildren()175 void HTMLAppletElement::finishParsingChildren()
176 {
177     // The parser just reached </applet>, so all the params are available now.
178     HTMLPlugInElement::finishParsingChildren();
179     if (renderer())
180         renderer()->setNeedsLayout(true); // This will cause it to create its widget & the Java applet
181 }
182 
183 }
184